<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue 测试实例 - 菜鸟教程(runoob.com)</title>
<script src="https://cdn.staticfile.org/vue/3.2.36/vue.global.min.js"></script>
</head>
<div id="app">
  <button v-on:keyup.a="dothis">click a</button>
  <button v-on:keyup.1="dothis">click 1</button>
</div>
<script>
   const app={
   data(){
   },
   methods:{
    dothis(e){
      console.log("keyup:",e)
    }
   }
  }
   Vue.createApp(app).mount('#app')
</script>
</body>
</html>
